Plaster-board.



DE LANCEY A. CAMERON.

PLASTER BOARD.

APPLIOATIQN FILED 001 31, 1911.

1,028,931, Patented June 11,1912.

tion such, for example,

at its edges and corners,

' STATES PATENT onrrcn- DE may 1,02S ,931. Specification of To all 'tvhoin mdyboncern:

Be it known that I, D LA'NCEY AICA ERON, a citizen of the United States, and

resident of Geneseo, in the county 'of Livingston' andfState of-New York, have inin place of lathing and plaster.

The object of the lnventio-n is to "produce a plaster-board having reinforcing devices of simple and inexpensive form, for the purpose of reinforcing the board, particularly while at the same time affording" secure anchorages for the nails or'screws-by which the board is fastened in place. U To this end the invention consists in a, plaster-board having-the; novel form ofreinforcement hereinafter described, as the same is defined in the succeeding'claims.

In the accompanying drawings ':Figure 1 is afront-elevation- 'of a plaster-board embodying the present invention, with a portion broken away to show theinterior construction; and Figgg-is a sectional view, on the line 2-2 in Fig.1, but on a larger scale, showing in detail the construction of the reinforcement at a. corner 'of the board.

The invention is illustrated as embodied in a plaster-board of ordinary form and of any convenientsize, having a body 3 formed of any ordinary or suitable plastic composias a mixture of plaster and fibrous material. This body may be reinforced throughout in the usual manner by a netting 4 of 'fine wires.

. The invention resides particularly in the means by which the edges and corners of the board are reinforced, and by which. anchorages are provided for the nails or other fastening means. To this end I provide, throughout the periphery of the body 3, a marginal reinforcement in the form of com-,

j par-atively heavy wires 5. ,These Wiresdo not extend continuously through, the pe-. riphery of the board, but comprise separate,

straight lengths whichare fixed at their ends to metal plates or corner-pieces 6. The corner-pieces are preferably embedded at the middle of the thickness of, the body, and. are formed to extend outwardly to, or sub- Letters latent.

Application filed October 31, 1911. Serial No. 657,832 J 1 stantially to, the corner of the body, as

A. cmnnon; or GENESEO, NEW YORK, AssIGNoB. mum P As'rEn. 00., v or mumronn, nnw YORK, 41 coerce-Arron or-nnw YORK.

'jPIJAs'rER-BOARD.

Patented June 11, 1912.

' shown in Fig. 1. These corner-pieces are perforated to receive the ends of the wires UM 5, WhlCh are passed through the perforations and twisted upon themselves; The cornerpieces serve not only as connections and anchorages for the wires 5,but they also rigidly reinforce the corners of the board to the very apices of the angles; where they are most liable to injury. This is'a feature of great practical. advantage,as 'ithas been 6 5 found that in the shipping and handling of plaster-board the corners are the parts most frequently broken away. By reinforclng the cornersand preventing such accidental,"

breakage I am enabled to use my .pla'sterboard in a novel and econoniical rnanner,

namely, without the use of pointing. That is to say, it is necessary only to fit the'plaster-boardcarefully in place upon the Studding orframework of the building, and 7 5 thereafter to spread a finishing coat of plaster upon the boards by means of a brush. Owing to the square \edges and corners, the boards make close joints at all points, and

therefore the use of afinishing coat of plaster spread as described is sufficient to close,

these joints and make a smooth, unbroken surface for the reception of paint or wall paperf-In order that the corner-pieces 6 may serve also as or fastening devices, they are extended into the body of the board within the wires 5, with peras shown in @Fig. l, and provided forations'8 to receive the nails. Thebody anchorages for the nails of the board is preferably provided also '90 with perforations!) registering with the perforations 8 so as to reteive the nails without danger of splitting the body, and the front surface of the board is' also preferably pro vided with recesses 10 of greater diameter to receive the heads of the nails.

Itrwill be apparent that by the arrangement just described I am enabled tb provide anchorages for the nails which are located at a sufficient distance within the edges'of 10. -the board to support the strain ofthe nails F without cracking away'the corners of the board, while at .the same time I provide an- 'choragesby which the supported very close marginal wires 5 are tothe edges of the 10 boards, -thus' most effectually reinforcing these edges.

As it is frequentlynecessary to subdivide a plaster-board of standard sizeinto smaller panels tofit spaces of less than thefull size 119 -of' a saw-cut or otherwise,

2 v 1,028,931 v n l of a board, the illustrated embodiment of the invention has provision for thus subdividing the board'into two or four-panels, each of which, after' such division, is 'reinforced throughout all of its edges and cors ners. To this end the .marginal reinforce- -ments are divided midway in each edge of the board by a metal plate 12 to which the wires 5 are anchored. This plate is of such form that when divided centrally by means the dot-and-dash lines in Fig. 1, it produces two corner-pieces substantially similar in form to the corner-pieces 6, and these pieces are provided with nail-receiving perforations in the. same manner as the pieces 6'. To reinforce the cut edges of the panels wires 11 are provided, these wires being connected with the pieces '12 in the same manner as thewires 5. At the middle of the board a pair of plates, similar in form tothe plates 12, are used, as shown in dotted lines in Fig. 1. l

I claimz- 1: A plaster-board comprising a panel of plastic composition, sheet-metal anchorages embedded in thepanel adjacent its corners and extending outwardly approximately to the edges of the panel, the anchorages being provided with nail-receiving perforations, and reinforcing wires embedded in the panel parallel with, and close to, its edges and fixed at their ends to the anchorages.

as indicated by, v

2. A plaster-boardcomprising a panel of plastic composition, sheet-metal anchorages embedded in the panel adjacent its corners and extending outwardly approximately to the edges of the panel, the anchorages being provided with nail-receiving perforations located at a substantial distance within the edges of the board, and reinforcing wires embedded in the panel parallel with, and

anchorages at points nearer to the edges of the board than. said nail-receiving per-forations. 1

3. A'plaster-board comprising apanel of plastic composition, reinforcing wires em- .bedded in said panel and extending parallel with, and close to, the edges thereof, and

anchorages at the corners of the panel, each anchorage comprising a piece of'sheet-metal embedded in the panel substantially parallel with and intermediate its opposite surfaces, the anchorage extending from the extreme c corner of the panel inwardly, said wires being connected with the anchorages, and each anchorage extendinginwardly beyond its points of connectioniwith the wires and being provided, in said inward extension, with a nail-receiving perforation.

DE LANGEY CAMERON. Witnessesf i F ARNUM F. DoRsEY, .D. GURNEE.

close to," the edges thereof and fixed to the 

